There are about 56,000 structurally deficient bridges across the nation, according to the Federal Highway Administration. Out of the 614,387 bridges in the U.S., more than 200,000 are more than 50 years old. The report estimates it would cost some $123 billion just to fix all the bridges. Above, Burr's Ferry Bridge at the Texas-Louisiana border would be on that list.

DAMS: D
According to the report, there were some 15,500 high-hazard dams in the US in 2016.
The low level of the reservoir at Falcon Dam, one of two reservoirs on the Rio Grande, Wednesday, May 15, 2001 in Harlingen, Texas. The water level is now below the flood gate doors, and visitors can stand at what used to be the bottom of a deep lake; two cities covered by the lake waters in the 1950's have emerged during the drought. CHRISTOBAL PEREZ/HOUSTON CHRONICLE. HOUCHRON CAPTION (05/19/2002): The water at Falcon Dam, one of two reservoirs on the Rio Grande River, is now below the floodgate doors, and visitors can stand at what used to be the bottom of a deep lake. HOUCHRON CAPTION (04/10/2005) SECMETRO: DROUGHT ENDING: This 2001 photo shows Falcon Lake below the floodgates. It is now about 64 percent full. less

DAMS: D
According to the report, there were some 15,500 high-hazard dams in the US in 2016.
The low level of the reservoir at Falcon Dam, one of two reservoirs on the Rio Grande, Wednesday, May 15, 2001 ... more

Photo: Christobal Perez, Staff / Houston Chronicle

DAMS: D
According to the report, there were some 15,500... Photo-14329875.178454 - Houston Chronicle

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DRINKING WATER: D

The pipes that carry America's drinking water are in critical need of attention.
According to the report, many of the 1 million pipes have been in use for almost 100 years. The aging system makes water breaks more prevalent, which means there are about 2 trillion gallons of treated water lost each year.

Most power lines in the U.S. were built in the 1950s and 1960s. They have a life expectancy of about 50 years, meaning that they are already outdated.
Between 2016 to 2025, there's an investment gap of about $177 billion for electricity infrastructure.

ENERGY: D+ Most power lines in the U.S. were built in the... Photo-12836860.178454 - Houston Chronicle

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HAZARDOUS WASTE: D+

About 22 million acres of land are used for hazardous waste programs. The report describes the infrastructure for hazardous waste as "generally adequate." However, it notes that more than half of the population lives within three miles of a waste site.

HAZARDOUS WASTE: D+ About 22 million acres of land are used... Photo-9488326.178454 - Houston Chronicle

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INLAND WATERWAYS: D

Some 25,000 miles of inland waterways help transport goods to different parts of the country. But the infrastructure, like dams and locks, is getting old and causing delays.
In fact, about 50% of vessels using these waterways experience delays, according to the report.

Levees play a critical role in protecting communities from floodwaters, but they aren't currently getting the attention they need.
During the next 10 years, there's a need for $80 billion to improve these structures, according to the report. Above, floodwaters breached a levee south of Houston.

The infrastructure that supports local parks and national parks needs improvement.
Roads, bridges, parking areas, trails and campsites are just a few of the things that need repairs.
The National Park Service even estimates that it reached $11.9 billion in deferred maintenance costs in 2015, according to the report.

There are 926 ports in the U.S. These ports are responsible for almost $5 trillion in economic activity, according to the ASCE. Most overseas trade comes through ports. And while our ports have a higher grade than most other infrastructure categories, there's still room for improvement.
For example, as ships get bigger, ports will need to make deeper navigation channels. Also, as congestion in ports increases, the freight network that takes shipments to and from ports needs to be improved so that goods are transferred more efficiently with fewer delays.

PORTS: C+ There are 926 ports in the U.S. These ports are... Photo-14675140.178454 - Houston Chronicle

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ROADS: D

Crumbling roads cost Americans about $160 billion in wasted fuel in 2014, according to the report. About 32% of urban roads and 14% of rural roads are in poor condition. There's a $836 billion backlog of unmet capital needed to fix highways and bridges, according to a report by the U.S. Department of Transportation.

Schools in the U.S. are not getting the funding they need to maintain public school buildings. About 24% are in fair or poor condition, according to the report. Above, kindergarten students head to class at Robinson Elementary, the first of seven severely flood-damaged HISD schools to reopen.

According to the ASCE, only 51% of U.S. households can travel to a grocery store in their area by public transportation. According to the report, it would cost about $90 billion to fix the backlog of transit system projects and that cost is estimated to grow to $122 billion by 2032. Above, passengers wait for a Metro light rail train along the new Red Line extension.

TRANSIT: D- According to the ASCE, only 51% of U.S. households... Photo-14764832.178454 - Houston Chronicle

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WASTEWATER: D+

There are about 15,000 wastewater treatment plants in the U.S., like East Greenbush's on the Columbia Turnpike in New York, but it's estimated the country will need 532 new systems by 2032. The U.S. needs to invest about $271 billion on wastewater infrastructure over the next 25 years, according to the report.